jismni ko‘tarishda va uni shu masofaga gorizontal ko‘chirishda bajarilgan ishni hisoblash 7-sinf

1645561741.ppt slide 1 7-sinf fizika darsligi asosida 40-mavzu: jismni ko‘tarishda va uni shu masofaga gorizontal ko‘chirishda bajarilgan ishni hisoblash * (4-laboratoriya ishi) ishning maqsadi: jism vertikal va gorizontal yo‘l bo‘ylab ko‘chirilganda bajarilgan ishni mustaqil ravishda hisoblash. kerakli jihozlar: laboratoriya tribometri, o‘quv dinamometri, santimetrli bo‘limlarga ega bo‘lgan o‘lchov tasmasi, 2 dona ikkita ilmoqli 100 g massali yuk, brusok, chizg‘ich. ishni bajarish tartibi jihozlardan 130-rasmda ko‘rsatilgan qurilmani yig‘ing. dinamometr yordamida brusok og‘irligini o‘lchang. so‘ngra brusokni yuqoriga tekis harakatlantirib, oldindan tasma yordamida o‘lchangan tribometr chizg‘ichi balandligiga ko‘taring. bajarilgan ishning kattaligini quyidagi formula bilan hisoblang: 3. ta...

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